NFI knowledge about the Swiss forest
An information service about the Swiss National Forest Inventory by the Swiss Federal Research Institute WSL.
![photo](layout/images/intro4.jpg)
Forest districts
The interim results of the fifth National Forest Inventory (survey years 2018-2022) can now also be queried by forest district.
![Formica rufa](/media/images/maps/introkarte_formica.jpg)
Forest ants
Where do the five most common species of red wood ants (Formica rufa group) live in Switzerland? New maps provide information.
![photo](layout/images/intro3.jpg)
Forest photos
Take a look into the forest. The NFI puts more than 40,000 photos online, with which you can explore the forests of Switzerland - comfortably from home.